Balanced valve for gas-engines.



No. 699,372. Patented May 6, I902.

S. H. DYER. BALANCED VALVE FOR GAS ENGINES.

7 (Application filed Oct. 5, 1900.) (No Model.)

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UNTTED STATES PATENT O FICE.

SILAS II. DYER, OF PAI/VTUOKET, RHODE ISLAND, ASSIGNOR OF ONE-HALF TO EDMUND \V. ORSWELL, OF PAIVTUCKET, RIIODE ISLAND.

' BALANCED VALVE FOR GAS-ENGINES SPECIFICATION forming part of Letters Patent No. 699,372, dated May 6, 1902.

Application filed October 5, 1.900. Serial No. 32,064. (No model.)

T [055 71171107711 it 2/ 007L067? by a rotating part of the engine, preferably Be itknown that I, SILAS H. DYER, a citizen the crank-shaft, in the manner usual with exof the United States,residing at Pawtucket,in plosive-engines. In rotating the valve 0 the the county of Providence and State of Rhode opening 0 in passing over the port of the inlet- 5 Island, have invented a new and useful Impassage 11' admits the explosive mixture to the provement in Balanced Valves for Gas-Enexplosion-chamberd. Themixture drawn by gines, ofwhich thefollowingisaspecitication. the piston passes through the openings b This invention has reference toan improveinto the cylinder. The rotation ot'the valve carment in the construction of the valve for gasries the opening 0 beyond the port andcuts IO engines controlling the admission of the exoff the supply. The explosive mixture is now plosive mixture to and the discharge of the usually compressed by the return stroke of the same from the cylinder; and it consists in the cylinder and then ignited. The force of the peculiar and novel construction of the valve explosion acts equally on the disk 0 and on and valve-casing whereby pressure on the the disk of the valve 0, because the pressure 15 valve caused by the explosion is balanced, as is equalized by the openings 0 b in the disk will be more fully set forth hereinafter, and Z), and the two disks are of the same diamemore particularly pointed out in the claims. ter; The impact of the valve against its sup- Figure 1 is a side view of the end of the enporting-surface and the wear caused by such gine-cylinder provided with the valve. Fig. impact are avoided. \Vhen the opening 0 2o 2 is a vertical transverse sectional view of passes over the port of the outlet-passage b the same, taken on the line row of Fig. Fig. the products of combustion may be expelled 3 is a top view of the valve, the cap of the in the usual manner.

valve-case being removed. I do not wish to confine myself to the exact Similar marks of reference indicate correconstruction of the parts and their relations, 25 sponding parts in all the figures. as the same may be varied without departing In the drawings, a indicates part of the enfrom the essential feature of the invention. gine-cylinder, a the piston, and b a circular Having thus described my invention, I

disk secured to the end of the cylinder. The claim as new and desire to secure by Letters inlet-passage Z) and the outlet-passage Z; are Iatent- 30 formed in the disk and extend from the pel. A rotatable valve for a gas-engine havriphery to one of the [lat sides of the disk. ing two disks secured to a valve-stem, a body In the drawings the inlet and outlet passages between the two disks containing the inlet extend to the upper surface of the disk I). and the outlet passages, an opening in one of A series of openings b b extendthrough the the disks arranged to register with said pas- 35 disk. The valve-disk 0, provided with the sages as the valve rotates, and a chamber inopening 0, is journaled in the center of the closing the valve, whereby the force of the exdisk Z). The stem 0 extending through the plosion is exerted equally on the two disks, as disk, has the lower end screw-threaded. The described. 0 disk is secured adjustably by screw-thread 2. In a gasengine, the combination with 40 engagement with the stem 0 and held in the the cylinder, of a perforated disk, inlet and adjusted position by the lock-nut c". The outlet passages in the disk, two valve-disks shaft 0 of the valve 0 is journaled in the cap bearing on the opposite sides of the perfod, which is secured to the end of the cylinder rated disk and secured to a common valveand bears around the periphery on the disk stem, the port 0, and a cap, as described.

5 b. The cap (1 has the chamber (1, which 3. A gas-engine valve having two disks seforms an explosion-chamber, which commucured to a valve-stem, inlet and outlet pasnicates through the openings b in the disk sages between the two disks, an opening in Z) with the interior of the cylinder. In the one of the disks and a combustion-chamber 10o construction shown in the drawings the cap inclosing both of the valve-disks,as described.

50 (Z and disk I) are shown secured to the end of 4. In a gas-engine, a cylinder havinga perthe cylinder by the bolts d (1 foratcd disk containing the inlet and outlet The shaft 0 is connected with and rotated passages, a cap secured to the end of the cylinder, a rotary valve-disk having an opening name to this specification in the presence of controlling the inlet and outlet ports, a valvetwo subscribing witnesses. stem journaled'in the perforated disk, and a disk secured to the end of the valve-stem and i 5 bearing on the opposite side of the perforated Witnesses:

disk, as described. I J. A. MILLER, J 1:, In testimony whereof I hare signed my ADA E. HAGERTY.

SILAS II. DYER. 

